Surfboard fin



FIG. 1 is a perspective view of a surfboard fin, showing my new design;

FIG. 2 is an inverted front elevational view thereof;

FIG. 3 is a right side elevational view of the surfboard fin as itappears in FIG. 2, the left side being a mirror image thereof;

FIG. 4 is a rear elevational view of the surfboard fin as it appears inFIG. 2;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof.

The ornamental design for a surfboard fin, substantially as shown andillustrated.